WHO WE ARE

At ECS LLC, our goal is your comfort, health, and safety. We focus on indoor air quality, building science diagnostics, home energy audits, and quality insulation & air sealing techniques, including cellulose, spray foam, roxul, and fiberglass insulation to achieve these goals.

Weatherize Before You Solarize

Are you spending a lot of money heating your home int the winter? Insulation can help! Air sealing & insulation are the most effective ways to make your home comfortable in winter & summer. Click the link below for a look at insulation types.
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Commercial LED Lighting

LitGreen - ECS LEDs provides state of the art LED lighting solutions across a wide variety of industries for a reasonable price. From design to installation, we’ve got you covered.
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Air Sealing

Insulation is very important, especially in attics, walls, and crawl spaces. But did you know that there is something even more important than insulation? There is and it's air sealing. Click the link below to read more about insulation and air sealing.
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Improve Indoor Air Quality

Our Building Scientists can help you figure out what is causing you harm, and how to fix it.

WHAT PEOPLE SAY?

Bill is the kind of a contractor that we need more of. His work is A-1 and reasonably priced.

Herb S., Hyde Park, NY

“Your company was a pleasure doing business with. What started as a business contact ended up feeling like we were friends. Bill and Melinda are caring, knowledgeable and fun.”

Bill and Barbara M., Hyde Park, NY

"Bill is one of the most thorough, diligent and pleasant contractors I have ever worked with. He has incredible patience in explaining every and all details. He also has a vast amount of knowledge and is a great resource for all things related to energy efficient building. I recommend him whole heartedly!"

Joanne L., Rhinebeck, NY

"I was impressed by Bill's vast building science knowledge and how he took the time to explain it all to me. I had him insulate and air seal my turn of the century house and now I am safe, comfortable, and am saving hundreds of dollars a month on my fuel and electric bills. I highly recommend Bill McKnight."

Olga P., Kingston, NY

"Bill is knowledgeable and thorough, and he really took the time to explain what he was doing and what he found. He's one of the best. I recommend him wholeheartedly."

Andrew S., Rhinebeck, NY

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